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If iron ore is Fe2O3

AFind its formula mass.
BCalculate the percent by mass of the ore that is iron.
Ccalculate the mass of iron that can be obtained from 500 grams of iron ore.

Show your work please? :)

Verified Answer :

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

Below should help you solve the problem. 

a.  Formula mass is the mass in its simplest ratio. Fe2O3 cannot be simplified further. Therefore its formula mass is: mass of Fe 2 + mass of O 3

b. (mass of Fe2)/answer in (a) 100%

c. answer in (b) * 500

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